Django QuerysetRefactor

In major Django news, Malcolm Tredinnick‘s long-awaited QuerysetRefactor branch is in for real; huzzah!  This has little immediate impact on my tiny site.   It did allow (and require, as I expected) me to remove the QLeftOuterJoin workaround from Django Snippets I used in a couple of places.  It also fixes other problems I’ve run into before—with ordering across relations, for example—and looks to be a major nicification in general.    I’m very impressed that so major an internals change could be done with so few backwards incompatibilities.